Error when installing SEO

[softyoda]

I have "Failed to read en.yaml: Duplicate key "OUTOFSTOCK" detected at line 57 (near "OUTOFSTOCK: "Out of Stock"")."
Error on every pages of my website, i don't even know how to remove the addon so i'm a bit embarassed.

It's on the lines :
} catch (Exception $e) { throw new RuntimeException(sprintf('Failed to read %s: %s', basename($this->filename), $e->getMessage()), 500, $e); }

There is a pull request that might solve the issue 🤔 #97